40-10x=21 Solution :

Solve 40-10x=21 equation and find X

Solution :40-10x=21
-10x = 21 - 40
-10x = -19
-10x / -10 = -19 / -10
x = 1.9

For 40-10x=21, group like terms on each side of the equal sign. and isolate the "-10X" term on one side of the equation by adding or subtracting to combine like terms across the equal sign. Finally divide both sides of the equation by the -10 to solve for "x".

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